Profile advice to Merge left to right

Hello,

I have two folders, one on a Win7 PC and one on a NAS that I would like to merge. The hard drive on the PC is not large enough to allow a synchronization of both directories.

Can you recommend a profile type and settings that would allow a left to right merge? I am fine with overwriting files that are identical. I am also fine with overwriting identical folders as long as the unique file contents on both sides are are merged into that same folder on the right.

Thank you!